2102432031541 has 4 divisors (see below), whose sum is σ = 2142100560492. Its totient is φ = 2062763502592.

The previous prime is 2102432031533. The next prime is 2102432031547. The reversal of 2102432031541 is 1451302342012.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1212485074641 + 889946956900 = 1101129^2 + 943370^2 .

It is a cyclic number.

It is not a de Polignac number, because 2102432031541 - 2³ = 2102432031533 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2102432031547) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19834264396 + ... + 19834264501.

It is an arithmetic number, because the mean of its divisors is an integer number (535525140123).

Almost surely, 2^{2102432031541} is an apocalyptic number.

It is an amenable number.

2102432031541 is a deficient number, since it is larger than the sum of its proper divisors (39668528951).

2102432031541 is an equidigital number, since it uses as much as digits as its factorization.

2102432031541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39668528950.

The product of its (nonzero) digits is 5760, while the sum is 28.

Adding to 2102432031541 its reverse (1451302342012), we get a palindrome (3553734373553).

The spelling of 2102432031541 in words is "two trillion, one hundred two billion, four hundred thirty-two million, thirty-one thousand, five hundred forty-one".